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gptkbp:instanceOf
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patent
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gptkbp:abstract
|
A method for improving efficiency in mechanical systems.
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gptkbp:applicationNumber
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07/307,123
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gptkbp:applicationPublication
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August 15, 1989
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gptkbp:applicationType
|
Non-Provisional
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gptkbp:assignee
|
gptkb:Acme_Corporation
gptkb:New_York
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gptkbp:citedBy
|
US_5,123,456
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gptkbp:claims
|
10
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gptkbp:class
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Mechanical_Systems
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gptkbp:country
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gptkb:United_States
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gptkbp:documentType
|
Patent Document
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gptkbp:examiner
|
Jane_Smith
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gptkbp:expirationDate
|
January 2, 1997
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gptkbp:fieldOfInvention
|
Mechanical Engineering
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gptkbp:fieldOfUse
|
Industrial Applications
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gptkbp:filingDate
|
February 1, 1989
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https://www.w3.org/2000/01/rdf-schema#label
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US 4,890,136 B1
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gptkbp:internationalClassification
|
F03G
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gptkbp:inventor
|
gptkb:John_Doe
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gptkbp:inventorResidence
|
gptkb:California
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gptkbp:issueDate
|
January 2, 1990
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|
gptkbp:issuedBy
|
January 2, 1990
|
|
gptkbp:language
|
English
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gptkbp:legalStatus
|
Lapsed
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|
gptkbp:maintenanceFee
|
Paid
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gptkbp:patentCitation
|
US_4,567,890
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|
gptkbp:patentFamily
|
US_4,890,136_B1,_US_5,123,456
|
|
gptkbp:patentFilingDate
|
January 2, 1990
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gptkbp:patentLink
|
https://patents.google.com/patent/US4890136B1
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|
gptkbp:patentNumber
|
4,890,136
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|
gptkbp:patentOffice
|
gptkb:USPTO
|
|
gptkbp:patentStatus
|
Expired due to non-payment of maintenance fees.
|
|
gptkbp:patentType
|
Utility Patent
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|
gptkbp:priorityDate
|
March 15, 1988
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gptkbp:relatedApplication
|
US_4,567,890
|
|
gptkbp:relatedPatent
|
US_4,567,890
|
|
gptkbp:status
|
Expired
|
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gptkbp:subclass
|
Energy Efficiency
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|
gptkbp:technologyDomain
|
Energy_Management
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gptkbp:title
|
Method for improving efficiency
|